30 Qty 1.6mm, 30 Qty 3.2mm, 40 Qty 4.8mm, 50 Qty 6.4mm, 50 Qty 9.5mm, 40 Qty 12.7mm, 20 Qty 15.9mm,20 Qty 19.1mm, 20 Qty 22.2mm. Used for Securing into a cut recess.
eBay